Phys.org: Phys.org news tagged with: sound energyhttp://phys.org/
en-usPhys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.New seismic survey technique could save dolphins' hearingConventional seismic imaging transmits sound energy into the ground and builds a picture of the underlying geology by analysing how the energy waves are reflected back to the receiver.http://phys.org/news338541922.html
TechnologyTue, 23 Dec 2014 07:50:02 EDTnews338541922What's the sound of a hundred thousand soccer fans?Mention vuvuzela to soccer fans, and they may cringe. The plastic horn rose to prominence during the 2010 World Cup in South Africa, where tens of thousands of those instruments blared in packed stadiums. The loud, buzzing noise soon became a major annoyance, disrupting players and even fans watching on TV.http://phys.org/news304789812.html
PhysicsWed, 27 Nov 2013 15:50:44 EDTnews304789812The sounds of science: Melting of iceberg creates surprising ocean din(Phys.org) —There is growing concern about how much noise humans generate in marine environments through shipping, oil exploration and other developments, but a new study has found that naturally occurring phenomena could potentially affect some ocean dwellers.http://phys.org/news292746684.html
EarthThu, 11 Jul 2013 07:31:36 EDTnews292746684New technology modifies music hall acousticsA new technology that relies on a system of inflatable sound absorbers may help make any performance hall instantly convertible into a venue for music ranging from classical to hard rock. The technology will be described at the 21st International Congress on Acoustics (ICA 2013), held June 2-7 in Montreal.http://phys.org/news289223484.html
PhysicsFri, 31 May 2013 12:51:30 EDTnews289223484Physics at the threshold of hearing(Phys.org) —The mammalian auditory system is one of the most sensitive detectors found in nature. Two kinds of cells, the inner and outer hair cells, work together to transduce mechanical vibrations into action potentials. Sound energy is detected and transmitted by the inner hair cells, while properties like gain and frequency selectivity, are controlled by the mechanical adjustments of vibrating outer hair cells. The business end of these cells, known as the hair bundle, is composed of 30 or more stereocilia, that serve as the transducers. To date, physiologists are at odds to explain how the hair bundle can respond to mechanical stimuli whose energy is an order of magnitude below the energy level of the background thermal motion. A new study from Dolores Bozovic's lab at UCLA takes theoretical look at the mechanical vibrations of hair cells. Their analysis, recently published in Physical Review Letters, does not close the book on the noise-busting capabilities of the hair cell system, but it does provide a framework to qualitatively describe their motion, and extend current models of their behavior.http://phys.org/news284837180.html
PhysicsWed, 10 Apr 2013 18:27:17 EDTnews284837180Trumping the trumpets: How audio engineering helps tone down vuvuzela disruption (w/ Video)(PhysOrg.com) -- Thanks to researchers at the Centre for Digital Music (C4DM) at Queen Mary, University of London, anyone watching the World Cup on their computer can now filter out the droning sounds of vuvuzela playing in South Africa's stadiums.http://phys.org/news196360791.html
TechnologyMon, 21 Jun 2010 17:51:40 EDTnews196360791Cooking with sound -- Score stove enters test stageA low-cost generator with the potential to transform lives in the world's poorest communities is now being tested across the UK and in Nepal. The Score project, led by The University of Nottingham, is developing a bio-mass burning cooking stove which also converts heat into acoustic energy and then into electricity, all in one unit.http://phys.org/news167054310.html
TechnologyFri, 17 Jul 2009 12:59:09 EDTnews167054310